1. Download the iBooks application to the mobile phone and connect the device to the computer.

2. Click on the book interface in the list on the left.

3. Get the required books on the desktop, and the book format is epub format.

4. Drag three books into the book and they will be automatically loaded into iTunes.

5. Click the device on the left, then select the book at the top, select the synchronized book, then select the selected book, select the book to be synchronized to the device, and finally click Apply.

6. The status bar at the top will show that it is synchronizing.

7. Open iBooks on your mobile phone, and you will find that three books that need to be synchronized have been transferred to the device.